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Honda VFR1200X Crosstourer
»
Main Crosstourer Discussion Boards
»
General Maintenance, Servicing, and Mechanical issues
»
Petrol Overflow Pipe Query?
07 Dec 23, 09:18 am
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Petrol Overflow Pipe Query? (Read 969 times)
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Fat Bert
Crosstourer Master ‐
835
Topic Author
Fat Bert
Crosstourer Master
Topic Author
Posts: 835
Buggering about in West Wales
Bike: 13 CT DCT Black
City / Town: Tenby
Country:
Petrol Overflow Pipe Query?
on:
May 30, 2020, 05.28 pm
May 30, 2020, 05.28 pm
Noticed a small patch of "damp" under the bike this afternoon.
First thought was oil leak.
But its petrol - looks and smells like quality Esso!
Def coming from one of the 3 oveflow pipes
The tank is only 1/3 full
The bike has stood in the blazing sunshine all day.
Never noticed it before and cooler garage floor shows no evidence
Thoughts?
baudbish
Crosstourer Pro ‐
126
#1
baudbish
Crosstourer Pro
Posts: 126
Bike: 2012 1200X DCT
City / Town: Lincolnshire
Country:
Re: Petrol Overflow Pipe Query?
Reply #1 on:
May 31, 2020, 01.32 am
May 31, 2020, 01.32 am
My understanding is that they are not 'overflow' pipes but 'breather' pipes. If your bike is sat in direct hot sunlight then the petrol will obviously 'vape' off within the fuel tank and the only exit is via the 'breather' pipe where it will condense and then may drip out. Better this that have a dangerous build-up of vapourised gas (under pressure) within the fuelk tank.
Last Edit: May 31, 2020, 01.33 am by baudbish
__Ray__
Crosstourer Pro ‐
435
#2
__Ray__
Crosstourer Pro
Posts: 435
Passed away July 2023
Country:
Re: Petrol Overflow Pipe Query?
Reply #2 on:
May 31, 2020, 01.49 pm
May 31, 2020, 01.49 pm
There are 2 hoses from the tank. 1 is the breather to prevent a vacuum in the tank witch lead to stop of fuel supply to the engine and the other is an overflow to prevent the bud up of pressure and more important to prevent gasoline leaking trough the cap and ending up on the hot engine.
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